[Event "OswestryB v Darwinian Knights"]
[Site "Oswestry"]
[Date "2024.10.17"]
[Round "Board 1"]
[White "Westhead, John"]
[Black "Fisher, Peter S"]
[Result "1/2-1/2"]
[ECO "D53"]
[WhiteElo "1673"]
[BlackElo "1636"]
[Annotator "kemen"]
[PlyCount "46"]
[GameId "2102075879254436"]
[EventDate "2024.10.18"]
[SourceVersionDate "2024.09.14"]

{[%evp 0,15,25,25,36,-48,-17,-4,32,-36,11,21,69,40,50,51,47,26]} 1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5 Be7 5. Nf3 (5. e3 O-O 6. Nf3 b6 7. Be2 Bb7 8. cxd5 exd5 9. Bf4 {Loe-Fisher, Oswestry ch rd1, 2024,1/2-1/2}) 5... b6 6. cxd5 Nxd5 (6... exd5 7. e3 O-O 8. Bd3 Bb7 {main} (8... Be6 {recommended in several theory books})) 7. Bxe7 Nxe7 (7... Qxe7) 8. g3 (8. e4 Bb7 9. Bb5+ c6 10. Bd3 {2-1-2}) 8... Bb7 9. Bg2 O-O 10. O-O Nd7 11. Rc1 (11. Qc2 {Cloud Engines. 2-1}) 11... c5 12. dxc5 Nxc5 13. b4 (13. Qc2 Ng6 14. Rfd1 Qe7 15. Rd2 Rfd8 16. Rcd1 Rac8 17. h4 h6 {Klingel-Johann, Mehlingen op 1992,1/2-1/2}) 13... Na6 (13... Ne4 $11 {SF17}) 14. a3 (14. Qa4 {the weakness of Bl's Q side is a perpetual motif} Nc7 15. Rfd1 Qb8 16. Qd7 Ng6 17. Ne4 Bxe4 18. Rxc7 Bxf3 19. Bxf3 Ne5 20. Qe7 Re8 21. Qd6 Nxf3+ 22. exf3 Rd8 23. Qxd8+ Qxd8 24. Rxd8+ Rxd8 25. Rxa7 g5 26. Ra6 Rd1+ 27. Kg2 b5 28. Rb6 Rd5 29. Kf1 $14 {SF17}) 14... Nd5 (14... Nc7 15. Qb3 Qb8 16. Rfd1 Rd8 $11 {SF17}) 15. Re1 (15. Nb5 $18 Qe7 16. e4 Ndc7 17. Qd6 Rae8 (17... Rfe8 18. Qxe7 Rxe7 19. Nd6 Ne8 20. Nxb7 Rxb7 21. Nd4 Nf6 22. e5 Nd5 23. Bxd5 exd5 24. Rc6 $18) 18. Nfd4 Nxb5 19. Nxb5 f5 20. Qxe7 Rxe7 21. Nxa7 fxe4 22. Nb5 Rd7 23. Rfd1 $18 {SF17}) 15... Qe7 16. e3 (16. Nxd5 Bxd5 17. Qc2 h6 18. Ne5 Bxg2 19. Kxg2 Qb7+ 20. Qc6 $16 {SF17}) 16... Rfd8 (16... Nac7 $11) 17. Qe2 Nac7 18. Nd4 Nxc3 19. Rxc3 Bxg2 20. Kxg2 Nd5 21. Rc2 Rdc8 22. Rec1 Rxc2 23. Rxc2 $14 Qd7 1/2-1/2

[Event "OswestryB v Darwinian Knights"]
[Site "Oswestry"]
[Date "2024.10.17"]
[Round "Board 2"]
[White "Smith, Jonathan"]
[Black "Brims, Alex"]
[Result "1/2-1/2"]
[ECO "A40"]
[WhiteElo "1555"]
[BlackElo "1558"]
[Annotator "kemen"]
[PlyCount "75"]
[GameId "2102085397803567"]
[EventDate "2024.10.18"]
[SourceVersionDate "2024.09.14"]

{[%evp 0,12,21,21,68,56,55,42,65,61,65,51,47,55,50]} 1. d4 g6 2. c4 e6 3. Nf3 Bg7 4. Nc3 Ne7 {A Hippopotamous, which also featured in Sadler-Tennant, TelfordB-OswestryB,2024  0-1} 5. e3 (5. e4 d5 (5... O-O 6. Be2 d5 7. cxd5 exd5 8. e5 {R Van Kemenade-Ansari , Cox Trophy final 2024,1/2-1/2}) 6. e5 {main, varying from Hippo proper is anotherGM line}) 5... a6 6. Be2 d6 (6... b6 7. Bd2 Bb7 8. Rc1 d6 {Ostermeier-Winter, Frankfurt ch 2008,0-1}) 7. O-O b6 8. Re1 (8. b4 {SF17} c5 9. Qb3 cxb4 10. Qxb4 Nbc6 11. Qb3 Qc7 12. Rb1 Rb8 13. Bd2 Na5 14. Qc2 O-O 15. Na4 {Koellner-Schwab, Koln Longerich op 2015,1-0}) 8... Bb7 9. Bf1 $14 {3rd line of SF17} (9. e4) 9... Nd7 10. g3 h6 11. Bg2 g5 12. g4 $6 {Bl's last signalled the standard Ng6 in the Hippo. Wh's rearrangement of the B and g3 holds this up. It is inconsisten to then invite the N in via h4 Also the move allows Bl to open the h file quickly} Ng6 (12... Rb8 {is a prior precaution}) 13. Nd2 (13. Ne5 $1 dxe5 14. Bxb7 Rb8 15. Bc6 exd4 16. exd4 O-O $15 {SF17}) 13... Bxg2 14. Kxg2 Nf6 $19 15. Nde4 Nd7 (15... Nxe4 16. Nxe4 d5 $19 {SF17}) 16. d5 e5 $6 {this blocks in the B- it is best to exchange it first- giving more room for the Rs on the K side files. It also cedes the f5 square to Wh} (16... Bxc3 17. bxc3 Qe7 18. Ng3 O-O-O $19 {SF17}) 17. Ng3 (17. Kh1 h5 18. gxh5 g4 19. hxg6 f5 20. f4 Qh4 21. Re2 fxe4 22. Rg2 $14 {SF17}) 17... Nh4+ 18. Kg1 (18. Kh1 e4 19. Ncxe4 Qe7 20. f4 O-O-O $14 {SF17}) 18... Qf6 (18... e4 19. Ncxe4 Ne5 20. Kh1 Qd7 21. Nh5 Kf8 22. Neg3 Qxg4 $11 {SF17}) 19. f4 O-O-O 20. Nh5 (20. Nce4 $1 $18 Qe7 (20... Qg6 21. f5 Qh7 22. Nh5 Nc5 23. Nxc5 dxc5 24. e4 f6 25. Be3 {and Wh goes on to attack the Bl K while Bl can do nothing on the other side, even having trouble bringing his pieces back to support his K})) 20... Qg6 21. Nxg7 $2 {gets rid of a somewhat useless B and also allowing Bl to open the h file at wish} (21. f5 Qh7 22. Ne4 $18 {Sf17}) 21... Qxg7 $19 22. f5 Nf6 (22... e4 23. Nxe4 h5 $19 {SF17}) (22... h5 23. Ne4 hxg4 24. Qxg4 Qh7 25. f6 Qh5 26. Qxh5 Rxh5 27. Kf2 Nf5 $19 {SF17-Wh is playing without the Q side pieces'}) 23. e4 (23. c5 dxc5 24. Qa4 Kb7 25. Qc6+ Kb8 26. b4 cxb4 27. Ba3 {is SF17's desperate attempt to get at the Bl K before the Bl attack breaks through}) 23... h5 24. h3 hxg4 25. hxg4 Qh6 26. Qe2 Nxf5 $1 27. exf5 (27. Qg2 Nd4 28. Be3 Nc2 $19 {SF17}) 27... Qh1+ 28. Kf2 Rh2+ (28... Nxg4+ $1 {diverts the Q.} 29. Qxg4 Rh2+ 30. Ke3 Qxe1+ 31. Kd3 Rdh8 32. Be3 Qxa1 33. Qd1 Qxb2 34. Qc1 Qg2 $19 {SF17}) 29. Kg3 (29. Ke3 Rxe2+ 30. Kxe2 Qh3 {SF17- escapes the immediate mate, but hopeless for Wh}) 29... Rh3+ (29... Rdh8 $1 30. Rxh1 R8h3# {SF17}) 30. Kf2 Qh2+ ({as at note to move 28} 30... Nxg4+) 31. Kf1 Qg3 32. Qg2 Rdh8 (32... Qd3+ {still ok} 33. Re2 Rdh8 34. Bxg5 Rh1+ 35. Kf2 Nxg4+ 36. Qxg4 R8h2+ 37. Qg2 Rxg2+ 38. Kxg2 Qh3+ 39. Kf2 Rxa1 $19 {SF17}) (32... Qh4 {also works, but less so than the previous lines .Its a more positional line} 33. Bxg5 Rh1+ 34. Ke2 Rxe1+ 35. Rxe1 Qxg5 36. Rh1 (36. Rg1 Rh8 37. Kd3 Kb7 38. a3 Rh4 $19 39. Ne4 Nxe4 40. Qxe4 Rh2 41. Qe3 Qh4 42. Qe1 Qh8 43. Qe4 Rxb2) 36... Nxg4 37. Qf3 Nf6 $19) (32... Qxg2+ 33. Kxg2 Rdh8 34. Bxg5 Rh2+ 35. Kg1 Nxg4 {and Bl must take the perpetual}) 33. Qxg3 Rxg3 34. Bxg5 Nxg4 (34... Rh2 35. Bxf6 Rf3+ 36. Kg1 Rff2 37. Re2 Rhg2+ 38. Kh1 Rh2+ {SF17 perpetual}) 35. Ne4 Rh1+ 36. Ke2 Rh2+ 37. Kf1 (37. Kd1 {[#] an attempt at escaping to the Q side, but the Engine still finds repetition in various ways, even though a piece up Wh must shed pawns in other to get his Q side moving} Rgg2 (37... Rd3+ 38. Bd2 Rd4 39. Kc2 Nf6 (39... Rxc4+ 40. Nc3 Rf2 {also gives Bl enough to hold}) 40. Nxf6 Rhxd2+ (40... Rdxd2+ 41. Kc3 Rc2+ 42. Kd3 Rcd2+ 43. Kc3 (43. Ke3 Rxb2 $11) 43... Rc2+) 41. Kc1 (41. Kb3 R4d3+ 42. Ka4 Rxb2 43. a3 Rdb3 44. Re2 b5+ 45. Ka5 Rxe2 $19) 41... Rf2 $11) 38. Bc1 Nf2+ 39. Nxf2 Rxf2 40. a4 a5 41. Ra3 Rxf5 42. Rae3 Rf4 43. Re4 Rf3 44. R4e2 Rh4 45. Rc2 f5 $11 {SF17- however Wh might finfd room for further play here- though either human could still go wrong in finding the best moves all the time.}) 37... Rh1+ 38. Ke2 1/2-1/2

[Event "OswestryB v Darwinian Knights"]
[Site "Oswestry"]
[Date "2024.10.17"]
[Round "Board 3"]
[White "Jeukens, Nathan"]
[Black "Sadler, Paul"]
[Result "1-0"]
[ECO "B76"]
[WhiteElo "1610"]
[BlackElo "1566"]
[Annotator "kemen"]
[PlyCount "109"]
[GameId "2102147029312668"]
[EventDate "2024.10.18"]
[SourceVersionDate "2024.09.14"]

{[%evp 0,109,25,16,58,64,85,62,53,33,33,36,59,56,50,35,35,24,25,32,22,20,40,11,21,32,34,34,44,0,9,-45,-45,-36,-37,-68,-83,-97,-91,-90,-88,-93,-58,-66,-72,-72,76,60,72,57,57,35,35,43,65,70,86,78,81,73,73,72,87,87,92,55,81,76,74,39,43,43,141,64,145,142,141,134,149,155,234,181,261,142,191,205,205,181,235,235,287,145,139,135,1084,1115,1127,1211,1840,1894,2092,2215,2061,28621,28116,1278,28095,28092,1498,28119,29973,29974]} 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Be3 Bg7 7. f3 O-O 8. Qd2 Nc6 9. O-O-O {an older line, that has regained some popularity} (9. Bc4 {alternative}) 9... Bd7 (9... d5 10. exd5 Nxd5 11. Nxc6 bxc6 12. Bd4 e5 13. Bc5 Be6 14. Ne4 Re8 15. h4 {main}) 10. Nxc6 (10. g4) (10. h4) (10. Kb1) (10. Bc4 {main lines, all heavily analysed, in some cases to past move 30}) (10. Bh6 Nxd4 11. Bxg7 Nxf3 12. gxf3 Kxg7 {44% for Wh}) 10... Bxc6 {34 & for Wh} (10... bxc6 {more frequent , opens b file and controls d5, 50%}) 11. Bh6 a6 (11... Qa5 {scores better for Bl}) 12. Bxg7 Kxg7 13. h4 (13. g4 $16 {Cloud Engines, but 1-2-3}) 13... h5 14. Be2 (14. Nd5 Bxd5 15. exd5 $11 {0.5-1.5}) 14... b5 15. Nd5 (15. Qf4 Qa5 16. a3 b4 $17 {Le-Bui, VIE ch U09, Dong Thap 1999,0-1}) (15. Qd4 Qa5 16. a3 Rfd8 17. e5 dxe5 18. Qxe5 e6 (18... Qb6 $11) 19. g4 $18 {Walsh-Crouch, U1600 London Classic, 2018,1/2-1/2}) (15. g4 $11 {Cloud Engines}) 15... Bxd5 16. exd5 Rc8 17. Kb1 (17. g4 $1 Rc5 18. g5 Nxd5 19. b4 Nc3 20. bxc5 Qa5 21. Qd4+ e5 22. Qe3 Qb4 23. Rxd6 Nxa2+ 24. Kd1 Qb1+ 25. Kd2 Qxh1 26. Qxe5+ Kg8 27. Bd3 Qxf3 28. Rxa6 Nb4 29. Be2 $11 {Sf17- the kind of complications inherent in thisline of oppositeside castling}) 17... Rc5 $19 18. g4 Rxd5 19. Qf4 Qa8 (19... Re5 20. Qh2 Rh8 $19 {SF17}) 20. Bd3 Rh8 (20... Rc8 $19) 21. g5 Nd7 22. Rde1 (22. c4 Re5 23. Qd4 Qxf3 24. cxb5 axb5 25. Bxb5 Qf5+ 26. Ka1 Nc5 27. Rhf1 Qh3 28. Bc4 Rf8 $19 {Sf17}) 22... Re8 (22... Re5 $19 {SF17}) 23. Be4 Ne5 (23... Rd4 $1 {SAF17} 24. c3 Ra4 25. b3 Rxe4 26. Qxe4 (26. Rxe4 Nc5 $11) 26... Qc8 27. Re3 Nc5 28. Qc2 Qd7 29. Rd1 Rc8 $11) 24. Bxd5 (24. Qc1 $1 Nc4 25. Rh2 Nb6 26. Bxd5 Qxd5 27. Qd2 Qc6 28. f4 $16 {SF17}) 24... Qxd5 $14 25. Qe4 Qxe4 26. fxe4 Nf3 (26... f6 27. gxf6+ exf6 28. Rd1 Re6 29. Rd2 Ng4 30. b3 Kf7 31. Rf1 Ke7 32. Rd4 Ne5 $14 {SF17}) 27. Re3 Nd2+ 28. Kc1 Nc4 29. Rc3 $18 f6 30. b3 (30. gxf6+ Kxf6 31. Rf1+ Ke6 32. b3 Ne5 {SF17} 33. Rc7 $18) 30... Ne5 31. gxf6+ Kxf6 32. Rc7 (32. Rf1+ Kg7 33. Rg1 Kh6 34. Kb2 b4 35. Rc7 Nf3 36. Rh1 g5 37. hxg5+ Kxg5 38. Rb7 h4 39. Rxb4 Rh8 40. Rb7 h3 41. Rxe7 h2 42. Re6 Kg4 43. Rxd6 Kh3 44. Rg6 Ne5 45. Rxa6 Kg2 46. Ra1 h1=Q 47. Rxh1 Rxh1 48. Rf6 $18 {SF17- the connected passed pawns win the day}) 32... Ra8 {best to avoid protecting weak pawns with a R , rather one needs to try and attack elsewhere} (32... g5 {Bl needs to find play urgently on the K side to counter Wh's longrange winning captures/advances on the Q side} 33. hxg5+ Kxg5 34. Kd2 h4 35. c4 bxc4 36. bxc4 Ng4 37. Ke2 Nf6 38. Ke3 Nh5 39. c5 dxc5 40. Rxc5+ e5 41. Rg1+ Ng3 $14 {SF17- still a difficult game to handle for both sides}) 33. Kd2 (33. Kb2 $18 {allows Wh to play a3 if Bl goes b4}) 33... a5 (33... b4 34. c3 a5 35. Rb7 bxc3+ 36. Kxc3 a4 37. b4 Rc8+ 38. Kb2 Nc4+ 39. Kb1 Nd2+ 40. Ka1 Nxe4 41. Ra7 Nc3 42. Rc1 d5 43. b5 $18 {SF17}) 34. a4 (34. a3 Rb8 35. Ra7 a4 36. bxa4 bxa4 37. Rxa4 Rc8 38. Ra7 $18 {SF17}) 34... bxa4 35. bxa4 Ra6 (35... Rb8 $1 36. Ra7 Ke6 37. Rh3 Rb1 38. Ke2 Nc4 39. Rg3 Kf6 $11 {SF17}) 36. Ke3 (36. Rb1 $18) 36... Rc6 {usually its best to keep pieces on when behind in an endgame. Here the R & N cooperate better than Wh's disconnected Rs, so Bl should keep his R on principle.} (36... Rb6 37. Ra7 Rb8 38. Rd1 Nc6 $11 {SF17}) 37. Rxc6 (37. Rf1+ Ke6 38. Rxc6 Nxc6 39. Rf8 $18) 37... Nxc6 38. Rb1 Ke6 (38... g5 39. Rb5 gxh4 40. Rxh5 Ke6 41. Rxh4 Kd7 42. Rh5 Ne5 43. Kd4 Nc6+ 44. Kc4 Kc8 45. Rd5 Kc7 46. Rb5 e6 47. c3 e5 48. Rd5 Kd7 49. Kb5 Kc7 50. Rd1 $18 {SF17}) 39. Rb6 Kd7 40. Rb5 Kc7 41. Rg5 Ne5 42. Kf4 Kc6 43. Rxe5 {getting to a K & P ending is easier to calculate, ( though that doesn't stop people going wrong even then)} (43. Rg3 Kc7 44. Rc3+ Kd8 45. Rb3 Nc6 46. Rb5 Kc7 47. Kg5 Nd4 48. Rxa5 Nf3+ 49. Kxg6 (49. Kf4 Nxh4 50. Kg3 {wins N}) 49... Nxh4+ 50. Kxh5 Nf3 51. Rb5 Nd4 52. Rb1 Nc6 53. Kg4 $18 {SF17}) 43... dxe5+ 44. Kxe5 {SF17, best} (44. Kg5 {vk as its not necccesary to worry about the e pawns'but this was based on a visual idea, not on real calculation as it ought to be.} Kc5 45. Kxg6 Kb4 46. Kxh5 Kxa4 47. Kg4 Kb5 48. h5 a4 49. h6 a3 50. h7 a2 51. h8=Q a1=Q 52. Qe8+ Kb6 53. Qxe7 {one of them has to go anyway.Checking with Szsygy tablebases this is winning for Wh in all variations,because of Wh's active K, but still takes some doing}) 44... Kd7 (44... Kc5 {was what worried Wh on reaching this position, but it all works for Wh.( it does show up some of the complexity inherent in what look to be quite simple K & P endings)} 45. Ke6 $1 Kd4 (45... Kb4 46. Kxe7 Kxa4 47. e5 Kb4 48. Kd6 a4 49. e6 a3 50. e7 a2 51. e8=Q a1=Q 52. Qb8+ Kc3 53. Qh8+) (45... g5 46. hxg5 h4 47. g6 h3 48. g7 h2 49. g8=Q h1=Q 50. Qg5+ Kc4 51. Qb5+ Kc3 52. Qxa5+ (52. e5 Kxc2 53. Kxe7 $18) 52... Kxc2 53. Qd5 $18)) 45. Kf4 (45. c4 Kc6 (45... g5 46. hxg5 h4 47. Kf4 Kd6 48. g6 Ke6 49. e5 h3 50. Kg3 Kxe5 51. g7 $18) 46. Ke6 (46. Kf4) 46... Kc5 47. Kxe7 g5 48. hxg5 h4 49. g6 h3 50. g7 h2 51. g8=Q h1=Q 52. Qd5+ Kb4 53. e5 $18 {SF17}) 45... Ke6 46. Kg5 {What follows is a reconstruction as both players had stopped scoring with less than 5 mins. The final from move 50 were, with some inaccuracy, recorded by vk} (46. c4 Kf6 47. e5+ Ke6 48. Ke4 Kd7 49. Kd5 e6+ 50. Ke4 g5 51. hxg5 h4 52. Kf4 h3 53. Kg3 $18 {SF17}) 46... Kf7 (46... Ke5 {is a drawn position} 47. Kxg6 Kxe4 48. Kxh5 Kf4 49. Kg6 e5 50. h5 e4 51. h6 e3 52. h7 e2 53. h8=Q e1=Q) 47. c4 {this sequence is replicated by the Engine as one of its lines} e6 48. c5 e5 49. c6 Ke6 50. Kxg6 Kd6 51. Kxh5 Kxc6 52. Kg4 Kc5 53. h5 Kb4 54. h6 Kxa4 55. h7 1-0

[Event "Oswestry B v Darwinian Knights B"]
[Site "Oswestry"]
[Date "2024.10.17"]
[Round "Board 4"]
[White "Cosens, Paul"]
[Black "Pileggi, Cesar"]
[Result "1-0"]
[ECO "B45"]
[BlackElo "1451"]
[Annotator "kemen"]
[PlyCount "73"]
[EventDate "2024.10.18"]
[SourceVersionDate "2024.09.14"]

1. e4 e6 2. Nc3 c5 3. Nf3 Nc6 4. d4 cxd4 5. Nxd4 Nf6 {from a French it has become a Sicilian Four Knights} 6. Bg5 (6. Ndb5 d6 (6... Bb4)) (6. Nxc6 bxc6 7. e5 {main lines}) 6... Be7 7. Bc4 (7. Qd2) (7. Nxc6 {main lines}) 7... Nxe4 (7... O-O) (7... a6) 8. Nxe4 (8. Nxc6 Nxc3 {Cloud Engines, not yet played} (8... bxc6 9. Bxe7 Qxe7 10. Nxe4 d5 $14 {0-2}) 9. Qg4 h5 10. Bxe7 hxg4 11. Nxd8 Kxe7 12. Nxf7 Kxf7 13. bxc3 $11) 8... d5 (8... Bxg5 9. Nd6+ (9. Nxg5 Qxg5 10. g3 O-O 11. Nf3 Qf5 12. Qe2 Qa5+ 13. Nd2 d5 $19 {Lambert-Michalko, EU ch U10, Mureck 2005,0-1}) 9... Kf8 10. Ne2 Be7 $19 {Kristinsson-Erlbeck, Reykjavik op 2024,0-1}) 9. Nxc6 (9. Bxe7 $1 Qxe7 (9... Kxe7 10. Nxc6+ bxc6 11. Qd2 $18) 10. Bb5 O-O 11. Nc3 $18 {SF17- difficult to calculate with all the pieces flying about}) 9... bxc6 10. Bxe7 Qxe7 11. O-O (11. Qe2 O-O 12. O-O Bb7 $11 {SF17}) 11... dxc4 $2 (11... O-O $11) 12. Qd4 (12. Nd6+ Kf8 13. Re1 f6 14. Re4 h5 15. Rxc4 $18 {SF17}) 12... O-O 13. Qxc4 Bb7 {Wh now gets a superior game because there is a powerful N vs a bad B} (13... Rb8 14. b3 Rb5 15. Rad1 (15. Qxc6 Rd5 {Bl gets counterplay with the B active}) 15... Rd5 16. Nc3 Rg5 $14 {SF17}) 14. Nc5 (14. Qc5 Qxc5 15. Nxc5 Bc8 {SF17, is even stronger. Qs are srtong attackers, but also very good defenders as they can cover dseveral weak points. So their elimination makes it harder to defend. Here ethe removal of the Q would make it easier for Wh to come in on either d8 or d7 with a R( if the B stays on b7 with Rab8}) 14... Rab8 15. b4 Rfd8 16. Rad1 Ba8 17. c3 (17. Qa6 h6 18. Rxd8+ Rxd8 19. a4 $18 {SF17}) 17... Rd5 18. a4 Rbd8 19. Rc1 (19. Qe2 $16) 19... a5 (19... Bb7 20. Rce1 Bc8 21. f4 Qf6 $14 {SF17}) 20. Rfe1 (20. Qa6 $16 {SF17}) 20... Qf6 21. h3 Rd2 $2 (21... h6 22. Qg4 Qe7 23. Re3 Bb7 24. Rg3 g6 25. Re1 Bc8 26. Qf4 Kg7 27. Rge3 $16 {SF17}) 22. Ne4 $18 Qf5 23. Nxd2 Rxd2 24. Qc5 Rd5 25. Qa7 Rd8 26. Rcd1 Rf8 27. Qc5 (27. Qxa5) 27... Qg6 28. Rd7 (28. bxa5) 28... axb4 29. cxb4 Qf6 30. Red1 g6 31. Qe7 Qe5 32. Rd8 Rxd8 33. Rxd8+ Kg7 34. Qf8+ Kf6 35. Qh8+ Kf5 36. g4+ Kf4 (36... Ke4 37. f3+) 37. Rd4+ 1-0

[Event "Oswestry v Darwinian Knights B"]
[Site "Oswestry"]
[Date "2024.10.17"]
[Round "Board 5"]
[White "Bonner, Dennis"]
[Black "Grocott-James, A"]
[Result "1/2-1/2"]
[ECO "D00"]
[WhiteElo "1454"]
[BlackElo "1432"]
[Annotator "kemen"]
[PlyCount "53"]
[GameId "2102390364210189"]
[EventDate "2024.10.18"]
[SourceVersionDate "2024.09.14"]

{[%evp 0,16,19,31,43,27,73,67,62,37,35,-29,-6,-11,-11,5,16,-1,7]} 1. d4 d5 2. Bf4 c5 3. e3 Nc6 4. c3 Nf6 5. h3 Bf5 (5... Qb6 6. Qb3 c4 7. Qxb6 axb6 {main,29 games 23% for Wh}) 6. Nf3 e6 (6... Qb6 {main}) 7. Nbd2 Be7 (7... h6) (7... Bd6) (7... Qb6) 8. Be2 Qb6 (8... O-O {42% for Wh}) (8... h6 {35 % for Wh}) 9. Qc1 $11 {transposes to 54 games} (9. Qb3 {3-1-4}) 9... O-O 10. O-O Rac8 11. Ne5 (11. dxc5 Bxc5 $11 {2-2-4}) 11... cxd4 12. Nxc6 Rxc6 (12... bxc6 13. exd4 c5 $17 {1-1-7}) 13. exd4 $11 Bd6 14. Bxd6 Rxd6 15. Nf3 Nd7 (15... Ne4 $11 {Sf17}) 16. a4 Re8 (16... Be4 $11 {Sf17}) 17. Bb5 f6 (17... a6 18. Bxd7 Rxd7 19. a5 Qc7 20. Ne5 Rdd8 21. Qe3 f6 22. Nf3 h6 $11 {SF17}) 18. Re1 (18. b3 Qc7 (18... a6 19. c4 $18) 19. c4 dxc4 20. bxc4 b6 21. Qe3 Rc8 22. a5 e5 23. Rfe1 Bg6 24. dxe5 Nxe5 25. Nxe5 fxe5 26. axb6 axb6 27. Qxe5 $16 {S17}) 18... a6 19. Bxd7 (19. Bf1 Bg6 (19... Qc7 20. Nh4 Bg6 21. Nxg6 hxg6 22. Qf4 Rc6 23. Qd2 f5 24. Bd3 Nf6 25. Re5 Nd7 26. Re3 Nf6 $11) 20. b4 Qc7 21. Qa3 Rc8 22. Nd2 Rc6 23. c4 Qf4 24. b5 R6c7 25. Qe3 Qxe3 26. Rxe3 dxc4 27. Bxc4 axb5 28. Bxe6+ Bf7 29. Bxf7+ Kxf7 30. Ne4 Rc1+ 31. Re1 Rxa1 32. Nd6+ Kf8 33. Rxa1 Rc6 34. Nxb5 Nb6 $11 {SF17}) 19... Rxd7 20. Qd2 Rde7 21. Nh4 Qc6 (21... Be4 22. f3 Bg6 23. Nxg6 hxg6 24. a5 Qd8 $11 {17}) 22. Nxf5 exf5 23. Rxe7 Rxe7 24. Re1 Qd7 25. Rxe7 Qxe7 26. Qe3 Qd7 (26... Qe4 $11) 27. Qf4 $11 (27. Qf4 Qxa4 28. Qb8+ Kf7 29. Qxb7+ Kg6 30. Qxd5 Qa1+ 31. Kh2 Qxb2 32. Qf3 a5 33. Qg3+ Kf7 34. Qc7+ Kg6 35. Qg3+ $11 {repetition}) 1/2-1/2

